US6929196B2 - Fuel injection valve and internal combustion engine mounting the same - Google Patents

Fuel injection valve and internal combustion engine mounting the same Download PDF

Info

Publication number
US6929196B2
US6929196B2 US10/621,343 US62134303A US6929196B2 US 6929196 B2 US6929196 B2 US 6929196B2 US 62134303 A US62134303 A US 62134303A US 6929196 B2 US6929196 B2 US 6929196B2
Authority
US
United States
Prior art keywords
fuel
plate member
injection holes
injection
grooves
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US10/621,343
Other languages
English (en)
Other versions
US20040060538A1 (en
Inventor
Shigenori Togashi
Yoshio Okamoto
Makoto Yamakado
Masahiro Souma
Hiromasa Kubo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Astemo Ltd
Original Assignee
Hitachi Ltd
Hitachi Car Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd, Hitachi Car Engineering Co Ltd filed Critical Hitachi Ltd
Assigned to HITACHI, LTD., HITACHI CAR ENGINEERING CO., LTD. reassignment HITACHI, LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KUBO, HIROMASA, SOUMA, MASAHIRO, OKAMOTO, YOSHIO, TOGASHI, SHIGENORI, YAMAKADO, MAKOTO
Publication of US20040060538A1 publication Critical patent/US20040060538A1/en
Application granted granted Critical
Publication of US6929196B2 publication Critical patent/US6929196B2/en
Assigned to HITACHI AUTOMOTIVE SYSTEMS, LTD. reassignment HITACHI AUTOMOTIVE SYSTEMS, LTD. DEMERGER Assignors: HITACHI, LTD.
Assigned to HITACHI ASTEMO, LTD. reassignment HITACHI ASTEMO, LTD. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Assigned to HITACHI AUTOMOTIVE SYSTEMS, LTD. reassignment HITACHI AUTOMOTIVE SYSTEMS, LTD. MERGER (SEE DOCUMENT FOR DETAILS). Assignors: HITACHI AUTOMOTIVE SYSTEMS ENGINEERING, LTD.
Assigned to HITACHI AUTOMOTIVE SYSTEMS ENGINEERING, LTD. reassignment HITACHI AUTOMOTIVE SYSTEMS ENGINEERING, LTD. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: HITACHI CAR ENGINEERING CO., LTD.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1853—Orifice plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/12—Engines characterised by fuel-air mixture compression with compression ignition

Definitions

  • the present invention relates to a fuel injection valve which injects fuel into an internal combustion engine; and, more particularly, the invention relates to a technique for forming a fuel spray that has excellent atomization.
  • JP-A-10-43640 (1998), in particular page 2 and FIGS. 1 and 2 thereof, discloses one example of a conventional fuel injection valve, in which a valve body is provided with a valve seat at an inner wall face forming a fluid passage, a valve member for opening and closing the fluid passage by displacing a contacting portion thereof away from the valve seat and biasing the contact portion thereof into contact with the valve seat, respectively, and an orifice plate attached to the valve body at the fluid downstream side from the valve member and having an orifice penetrating the orifice plate in its thickness direction.
  • the face of the orifice plate which faces the valve member, the end face of the valve member and the inner wall of the valve body form a substantially disk shaped fluid chamber in which an obstacle is provided for disturbing the fluid flowing from an opening, that is formed between the contacting portion and the valve seat, to the orifice.
  • An object of the present invention is to provide a fuel injection valve, which provides an improvement in atomization performance, and to provide an internal combustion engine which realizes reduction in the fuel consumption amount and reduction in the exhaust amount of unburned gas components (HC,CO) of the fuel with use of the atomization improved fuel spray.
  • HC,CO unburned gas components
  • the present invention adopts a configuration in which a variety of grooves are provided, including an annular groove surrounding an injection hole, whereby, through a flow contracting effect on the fuel flow which overflows the groove in the injection hole, the velocity of the injection flow is increased and the atomization performance is enhanced.
  • FIG. 1 is a vertical cross sectional view of a fuel injection valve representing an embodiment of the present invention
  • FIG. 2 is a vertical cross sectional view of a nozzle portion in an embodiment of a fuel injection valve according to the present invention
  • FIG. 3 is a plane view of a plate member as seen from an injection hole inlet side in the embodiment of the fuel injection valve according to the present invention
  • FIG. 4 is a plane view of a plate member as seen from an injection valve inlet hole in a modified embodiment of the fuel injection valve according to the present invention
  • FIG. 5 is a diagram illustrating the manner in which overflow occurs around an annular groove provided near the injection hole inlet portion in the embodiment of the fuel injection valve according to the present invention
  • FIG. 6 is a diagram illustrating the manner in which velocity acceleration occurs due to the overflow and atomization promotion due to an eddy current in accordance with the present invention
  • FIG. 7 is a diagram illustrating flow velocity distribution at the injection hole outlet portion in the embodiment of the fuel injection valve according to the present invention.
  • FIGS. 8 (A) through 8 (D) are diagrams of a variety of groove configurations for use in the embodiments of the fuel injection valve according to the present invention.
  • FIG. 9 is a vertical cross sectional view of a nozzle portion of an embodiment of a fuel injection valve, in which the upstream side of the plate member is structured into a radial flow type, according to the present invention.
  • FIG. 10 is a vertical cross sectional view of a nozzle portion of an embodiment of a fuel injection valve, in which the upstream side of the plate member is structured into a collision flow type, according to the present invention
  • FIG. 11 is a vertical cross sectional view of a nozzle portion of an embodiment of a fuel injection valve, in which the upstream side of the plate member is structured into a flat valve type, according to the present invention
  • FIG. 12 is a partial cross sectional view of an embodiment in which a fuel injection valve of the present invention is mounted on an internal combustion engine;
  • FIG. 13 is a vertical cross sectional view of a nozzle portion in an embodiment of a fuel injection valve with a single injection hole according to the present invention.
  • FIG. 14 is a partial cross sectional view of an embodiment in which a direct injection type fuel injection valve according to the present invention is mounted on an internal combustion engine.
  • a plane which includes an axial line of a valve body and which is disposed in parallel therewith, is called a vertical cross sectional plane.
  • FIG. 1 is a vertical cross sectional view showing the structure of a normally closed solenoid type fuel injection valve, which is one of the known fuel injection valve types, representing an embodiment of the present invention.
  • a normally closed solenoid type fuel injection valve which is one of the known fuel injection valve types, representing an embodiment of the present invention.
  • the advantages of the present invention are not limited to application of the invention to a solenoid type fuel injection valve.
  • the fuel injection valve as shown in FIG. 1 , is provided with a yoke 105 , formed of a magnetic substance, surrounding a solenoid coil 109 ; a core 106 , which is located at the center of the solenoid coil 109 and one part of which is in contact with the core 106 ; a valve body 102 , which is lifted by a predetermined amount when the solenoid coil 109 is excited; a valve assembly 103 having a seat face 110 facing the valve body 102 ; a fuel injection chamber 101 , from which fuel that flows through a gap between the valve body 102 and the seat face 110 is injected, and a plate member 111 having a plurality of injection holes 107 and which is disposed under the fuel injection chamber 101 .
  • a spring 108 is provided as an elastic member which works to press the valve body 102 onto the seat face 110 .
  • the valve body 102 is in close contact with the seat face 110 .
  • Fuel is supplied from a fuel supply port under a pressurized state by a fuel pump (not shown).
  • a fuel passage in the fuel injection valve extends up to the closely contacted position of the seat face 110 with the valve body 102 .
  • the fuel is concentrated around the axial center in the fuel injection chamber 101 ; and, thereafter, the fuel flows along the plate member 111 radially in the outer circumferential direction and is injected through the plurality of fuel injection holes 107 toward an intake port of the engine, for example.
  • FIG. 2 is a vertical cross sectional view of the nozzle portion.
  • a feature of the present invention is that grooves 201 are formed in the vicinity of the respective injection holes 107 on the face of the plate member 111 in the fuel injection passage, and they extend along the circumferential direction of the respective injection holes 107 , as shown in FIG. 3 . Since the grooves are provided so as to surround the respective injection holes 107 , the respective grooves are naturally formed near the respective injection holes 107 . Further, grooves other than the annular grooves 201 , as shown in FIG. 3 , can be used. For example, FIG. 4 shows a modification in which, instead of continuous annular grooves, four rectangular shaped grooves 401 are provided around the circumference of each of the respective injection holes.
  • Each of the grooves 401 is configured in such a manner that, when the length of the rectangular groove 401 in the circumferential direction of the injection hole is d and the length thereof in radial direction of the injection hole is t, the ratio d/t is selected to be more than 1, so that d>t.
  • the reason for this is that, in order to induce an overflow effect due to the presence of the grooves more efficiently, it is preferable that the circumferential length d is longer than the radial direction length t. Therefore, the most preferable configuration is the use of circumferential grooves.
  • the number thereof is not limited to four, and may be set in consideration of the allowable physical space therein.
  • a flat portion (plane portion) 203 is formed between adjacent injection holes 107 outside of the grooves 201 .
  • the distance (interval) L between the adjacent injection holes 107 outside the grooves 201 on the flat portion 203 is determined to be longer than the distance (interval) l between the inner edge of the groove 201 and the outer edge of the injection hole 107 .
  • the groove 201 is disposed close to the injection hole 107 in such a manner that the distance l is shorter than the distance L.
  • the flat portion (plane portion) 203 contributes to an enhancing of the overflow inducing effect, which will be explained later.
  • FIGS. 5 through 7 The function and advantages of the present invention will be explained with reference to FIGS. 5 through 7 .
  • fuel 501 which comes from the outer circumferential direction, flows deep into the groove, forms overflows 502 and flows into the respective injection holes 107 , as shown in FIG. 5 .
  • fuel flow 601 takes the form of a contracted flow portion 602 having a diameter which is slightly smaller than that of the injection hole 107 as the fuel is injected from the injection hole 107 .
  • FIG. 7 shows a flow velocity distribution at the injection hole outlet portion. As will be seen from FIG.
  • FIGS. 8 (A) through 8 (D) show different cross-sectional configurations of the grooves 201 that are formed around an injection hole 107 .
  • FIG. 8 (A) shows an example wherein a rectangular groove 201 A is formed;
  • FIG. 8B shows another instance wherein a V shaped groove 201 B is formed;
  • FIG. 8 (C) shows still another instance wherein a groove 201 C is formed so that the inner side wall inclination angle near the injection hole is designed to be steeper than that remote from the injection hole; and
  • FIG. 8 (A) shows an example wherein a rectangular groove 201 A is formed
  • FIG. 8B shows another instance wherein a V shaped groove 201 B is formed
  • FIG. 8 (C) shows still another instance wherein a groove 201 C is formed so that the inner side wall inclination angle near the injection hole is designed to be steeper than that remote from the injection hole; and
  • FIG. 8 (A) shows an example wherein a rectangular groove 201 A is formed
  • FIG. 8 (D) shows a further instance wherein a groove 201 D is formed in which the top level of a projection 204 around the injection hole 107 is formed to be higher by a height H than that of the surface of the plate member 203 at the upstream side of the groove.
  • the groove configurations as shown in FIGS. ( 8 A) through 8 (D) can basically form the overflows 502 .
  • the bottom shape need not be an acute angle, but can be rounded.
  • the height H is preferably smaller than the diameter ⁇ D of the injection hole 107 , so as to form the overflows.
  • the overflows 502 are formed at a position where the grooves 201 are disposed; and, further, through the formation of the contracted flows 602 in the fuel injection holes 107 , the maximum flow velocity at the fuel injection outlet portion is increased, whereby the turbulence of the gas and the liquid interface between the fuel and the air is enhanced, and the atomization performance is improved.
  • FIGS. 9 through 11 show vertical cross sectional views of nozzle portions of respective embodiments wherein the structures upstream of the plate member 111 of the fuel injection valve according to the present invention are formed respectively in a radial flow type, a collision flow type and a flat valve type.
  • a fuel contraction portion 901 which contracts the fuel flowing through the gap between the valve body 102 and the seat face 110 .
  • a fuel outwardly radiating chamber 902 which forces the fuel to flow toward the outer circumference; and, further, under the fuel outwardly radiating chamber 902 , a plate member 111 having a plurality of injection holes is provided.
  • the fuel flows which are injected outwardly through the respective injection holes 107 on the plate member 111 collide with each other at a collision point 1001 so as to divide the spraying direction into two directions.
  • valve body 1101 is formed as a flat type; and, further, an annular seat face 1102 , through which fuel supply is controlled by the vertical movement of the valve body 1101 , is disposed between the valve body 1101 and the plate member 111 .
  • any of the above-described fuel injection valves of the radiation flow type, collision flow type and flat valve type can achieve the same or an even further atomization performance in comparison with the fuel injection valve shown in FIG. 2 .
  • FIG. 12 shows an example in which the fuel injection valve 1201 according to the present invention is mounted on an internal combustion engine. Since the fuel injection valve corresponds to a like solenoid type fuel injection valve as described with reference to the foregoing embodiments, a repeated explanation of the constitutional elements thereof is omitted.
  • the internal combustion engine as shown in FIG. 12 is constituted by a cylinder head 1202 , an intake valve 1203 , an ignition plug 1204 which ignites the mixture gas of fuel and air, a piston 1205 , a cylinder 1206 , an exhaust valve 1207 , an intake port 1208 which introduces air in to the cylinder 1206 , and an exhaust port 1209 which exhausts the combustion gas from the cylinder. Further, the fuel injection valve is provided with a connector through which an electrical current for driving the injection valve is supplied.
  • the intake valve 1203 is shown in a closed state. However, actually, when the fuel is injected in a spray from the fuel injection valve 1201 to the combustion chamber 1211 , the intake valve 1203 is opened.
  • the fuel injection start timing of the fuel injection valve 1201 may be either when the intake valve is actually opened or before the intake valve 1203 actually starts valve opening in view of the fuel flying time. In such instance, the fuel flying time is set in such a manner that the fuel injected at the injection start reaches the intake valve at the time when the intake valve 1203 is actually opened. Further, within an allowable range, the fuel injection start timing can be set so that the fuel injected at the injection start reaches the intake valve 1203 at the timing before the intake valve 1203 starts actual valve opening.
  • fuel injection valves are employed in which a plurality of injection holes 107 are provided on the plate member 111 ; however, the present invention is not limited to such embodiments, in that, as shown in FIG. 13 , for a fuel injection valve having a single injection hole 107 on the plate member 111 , a single groove which runs along the circumferential direction of the injection hole 107 can be provided.
  • FIG. 14 is a partial cross sectional view of a further embodiment, in which a direct injection type fuel injection valve 1401 , having a single injection hole 107 in the plate member 111 , as shown in FIG. 13 and from which fuel is injected directly into the combustion chamber 1211 is mounted on the internal combustion engine.
  • the direct injection type fuel injection valve 1401 is mounted directly on the cylinder 1206 near the intake valve 1203 , and a fuel spray 1402 is directly injected into the combustion chamber 1211 .
  • solenoid type fuel injection valves have been considered, however, the present invention is not limited to the use of such valves, and the present invention can be generally applied to fuel injection valves other than the solenoid type within a range where substantially the same function and advantages as the present embodiments can be obtained.
  • a structure for atomizing fuel is provided near the nozzle end of the injection valve, so that an effective fuel atomization can be achieved.
  • the present invention through the formation of fuel overflows at positions where grooves are located in relation to the fuel injection holes, and, further, through the formation of a contracted flow portion in the fuel injection holes, which provides the advantage of increasing the maximum flow velocity of the spray at the injection hole outlet portion, the turbulence of the gas and the liquid interface between the fuel and the air is accelerated and the atomization performance is improved.
  • the atomization performance of the fuel spray injected from the fuel injection valve is excellent, the exhaust amount of unburned components (HC,CO) can be reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)
US10/621,343 2002-09-06 2003-07-18 Fuel injection valve and internal combustion engine mounting the same Expired - Lifetime US6929196B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002-260752 2002-09-06
JP2002260752A JP4072402B2 (ja) 2002-09-06 2002-09-06 燃料噴射弁およびそれを搭載した内燃機関

Publications (2)

Publication Number Publication Date
US20040060538A1 US20040060538A1 (en) 2004-04-01
US6929196B2 true US6929196B2 (en) 2005-08-16

Family

ID=31884721

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/621,343 Expired - Lifetime US6929196B2 (en) 2002-09-06 2003-07-18 Fuel injection valve and internal combustion engine mounting the same

Country Status (3)

Country Link
US (1) US6929196B2 (ja)
JP (1) JP4072402B2 (ja)
DE (1) DE10334347B4 (ja)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040104285A1 (en) * 2002-11-29 2004-06-03 Denso Corporation And Nippon Soken, Inc. Injection hole plate and fuel injection apparatus having the same
US20050017098A1 (en) * 2003-07-21 2005-01-27 Joseph J. Michael Fuel injector including an orifice disc, and a method of forming the orifice disc including punching and shaving
US20050159669A1 (en) * 2003-11-07 2005-07-21 Klaus Abraham-Fuchs Domestic area telephone system and operating method for automatic reminder generation
US20060086830A1 (en) * 2004-10-26 2006-04-27 Denso Corporation Fluid injection valve
US20060097078A1 (en) * 2004-11-05 2006-05-11 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US20060097080A1 (en) * 2004-11-05 2006-05-11 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US20060097081A1 (en) * 2004-11-05 2006-05-11 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US20060097075A1 (en) * 2004-11-05 2006-05-11 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US20060097082A1 (en) * 2004-11-05 2006-05-11 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US20060097079A1 (en) * 2004-11-05 2006-05-11 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US20060097087A1 (en) * 2004-11-05 2006-05-11 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US20120305678A1 (en) * 2010-03-05 2012-12-06 Toyota Jidosha Kabushiki Kaisha Fuel injection valve

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005201097A (ja) * 2004-01-14 2005-07-28 Toyota Motor Corp 筒内噴射式内燃機関
US7185831B2 (en) * 2004-11-05 2007-03-06 Ford Motor Company Low pressure fuel injector nozzle
JP2007146828A (ja) * 2005-10-28 2007-06-14 Hitachi Ltd 燃料噴射弁
US20090057446A1 (en) * 2007-08-29 2009-03-05 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
DE102008032385B4 (de) * 2008-07-09 2018-03-29 Audi Ag Hochdruckeinspritzanordnung für eine direkteinspritzende Brennkraftmaschine
JP5395007B2 (ja) * 2010-07-22 2014-01-22 日立オートモティブシステムズ株式会社 燃料噴射弁およびそれを搭載した車両用内燃機関
WO2013011584A1 (ja) * 2011-07-21 2013-01-24 トヨタ自動車株式会社 燃料噴射弁
DE102013212191A1 (de) * 2013-06-26 2014-12-31 Robert Bosch Gmbh Verfahren und Vorrichtung zum Einblasen eines gasförmigen Mediums
US10344725B2 (en) * 2017-06-14 2019-07-09 Continental Powertrain, USA, LLC. Fluid injector spray disc having offset channel architecture, and methods for constructing and utilizing same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5076499A (en) * 1990-10-26 1991-12-31 Siemens Automotive L.P. Fuel injector valve having a sphere for the valve element
US5211341A (en) * 1991-04-12 1993-05-18 Siemens Automotive L.P. Fuel injector valve having a collared sphere valve element
JPH1043640A (ja) 1996-08-01 1998-02-17 Denso Corp 流体噴射ノズル
US6382533B1 (en) * 1999-02-24 2002-05-07 Robert Bosch Gmbh Fuel injection valve
US6494388B1 (en) * 1999-02-24 2002-12-17 Robert Bosch Gmbh Fuel injection valve
US6766969B2 (en) * 2000-09-13 2004-07-27 Delphi Technologies, Inc. Integral valve seat and director for fuel injector

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3814815B2 (ja) * 1998-03-25 2006-08-30 株式会社デンソー 噴孔プレートおよびその製造方法
JP3847564B2 (ja) * 2001-01-30 2006-11-22 株式会社日立製作所 燃料噴射弁

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5076499A (en) * 1990-10-26 1991-12-31 Siemens Automotive L.P. Fuel injector valve having a sphere for the valve element
US5211341A (en) * 1991-04-12 1993-05-18 Siemens Automotive L.P. Fuel injector valve having a collared sphere valve element
JPH1043640A (ja) 1996-08-01 1998-02-17 Denso Corp 流体噴射ノズル
US6382533B1 (en) * 1999-02-24 2002-05-07 Robert Bosch Gmbh Fuel injection valve
US6494388B1 (en) * 1999-02-24 2002-12-17 Robert Bosch Gmbh Fuel injection valve
US6766969B2 (en) * 2000-09-13 2004-07-27 Delphi Technologies, Inc. Integral valve seat and director for fuel injector

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040104285A1 (en) * 2002-11-29 2004-06-03 Denso Corporation And Nippon Soken, Inc. Injection hole plate and fuel injection apparatus having the same
US7191961B2 (en) * 2002-11-29 2007-03-20 Denso Corporation Injection hole plate and fuel injection apparatus having the same
US20060202063A1 (en) * 2002-11-29 2006-09-14 Denso Corporation Injection hole plate and fuel injection apparatus having the same
US20050017098A1 (en) * 2003-07-21 2005-01-27 Joseph J. Michael Fuel injector including an orifice disc, and a method of forming the orifice disc including punching and shaving
US7744020B2 (en) * 2003-07-21 2010-06-29 Continental Automotive Systems Us, Inc. Fuel injector including an orifice disc, and a method of forming the orifice disc including punching and shaving
US20050159669A1 (en) * 2003-11-07 2005-07-21 Klaus Abraham-Fuchs Domestic area telephone system and operating method for automatic reminder generation
US20060086830A1 (en) * 2004-10-26 2006-04-27 Denso Corporation Fluid injection valve
US7472838B2 (en) * 2004-10-26 2009-01-06 Denso Corporation Fluid injection valve
US7104475B2 (en) 2004-11-05 2006-09-12 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US7137577B2 (en) 2004-11-05 2006-11-21 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US20060097087A1 (en) * 2004-11-05 2006-05-11 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US7051957B1 (en) 2004-11-05 2006-05-30 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US20060097082A1 (en) * 2004-11-05 2006-05-11 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US20060097075A1 (en) * 2004-11-05 2006-05-11 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US7124963B2 (en) 2004-11-05 2006-10-24 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US20060097079A1 (en) * 2004-11-05 2006-05-11 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US7168637B2 (en) 2004-11-05 2007-01-30 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US20060097081A1 (en) * 2004-11-05 2006-05-11 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US7198207B2 (en) * 2004-11-05 2007-04-03 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US7438241B2 (en) 2004-11-05 2008-10-21 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US20060097080A1 (en) * 2004-11-05 2006-05-11 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US20060097078A1 (en) * 2004-11-05 2006-05-11 Visteon Global Technologies, Inc. Low pressure fuel injector nozzle
US20120305678A1 (en) * 2010-03-05 2012-12-06 Toyota Jidosha Kabushiki Kaisha Fuel injection valve
US8794550B2 (en) * 2010-03-05 2014-08-05 Toyota Jidosha Kabushiki Kaisha Fuel injection valve

Also Published As

Publication number Publication date
JP4072402B2 (ja) 2008-04-09
DE10334347B4 (de) 2007-01-11
JP2004100500A (ja) 2004-04-02
US20040060538A1 (en) 2004-04-01
DE10334347A1 (de) 2004-03-18

Similar Documents

Publication Publication Date Title
US6929196B2 (en) Fuel injection valve and internal combustion engine mounting the same
US7448560B2 (en) Unitary fluidic flow controller orifice disc for fuel injector
US6439484B2 (en) Fluid injection nozzle
KR930004967B1 (ko) 전자식 연료 분사밸브
US8313048B2 (en) Fuel injector
JP5875443B2 (ja) 燃料噴射弁
JP2004514834A (ja) 燃料噴射弁
US6929197B2 (en) Generally circular spray pattern control with non-angled orifices in fuel injection metering disc and method
US20040056114A1 (en) Spray pattern control with angular orientation in fuel injector and method
JP4306656B2 (ja) 燃料噴射弁
JP2004518910A (ja) 燃料噴射弁
JP2007182767A (ja) 燃料噴射弁
US10519910B2 (en) Valve for metering a fluid, especially a fuel injector
JP2003148299A (ja) 燃料噴射弁およびそれを搭載した内燃機関
US20080035130A1 (en) Fuel Injector
JP2004084549A (ja) 燃料噴射ノズルおよびそれを用いた燃料噴射装置
US7334746B2 (en) Seat-lower guide combination
JP2002332935A (ja) 燃料噴射弁および内燃機関
US9506437B2 (en) Injection valve
JP4166792B2 (ja) 燃料噴射装置
JP2771254B2 (ja) 電磁式燃料噴射弁
KR100419183B1 (ko) 유체분사노즐
JP2004324596A (ja) 燃料噴射弁およびそれを搭載した内燃機関
JP3020899B2 (ja) 電磁式燃料噴射弁
EP1856404B1 (en) Seat-lower guide combination

Legal Events

Date Code Title Description
AS Assignment

Owner name: HITACHI CAR ENGINEERING CO., LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TOGASHI, SHIGENORI;OKAMOTO, YOSHIO;YAMAKADO, MAKOTO;AND OTHERS;REEL/FRAME:014306/0241;SIGNING DATES FROM 20030320 TO 20030324

Owner name: HITACHI, LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TOGASHI, SHIGENORI;OKAMOTO, YOSHIO;YAMAKADO, MAKOTO;AND OTHERS;REEL/FRAME:014306/0241;SIGNING DATES FROM 20030320 TO 20030324

STCF Information on status: patent grant

Free format text: PATENTED CASE

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FPAY Fee payment

Year of fee payment: 4

FEPP Fee payment procedure

Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FPAY Fee payment

Year of fee payment: 8

FPAY Fee payment

Year of fee payment: 12

AS Assignment

Owner name: HITACHI AUTOMOTIVE SYSTEMS, LTD., JAPAN

Free format text: DEMERGER;ASSIGNOR:HITACHI, LTD.;REEL/FRAME:058960/0001

Effective date: 20090701

AS Assignment

Owner name: HITACHI ASTEMO, LTD., JAPAN

Free format text: CHANGE OF NAME;ASSIGNOR:HITACHI AUTOMOTIVE SYSTEMS, LTD.;REEL/FRAME:058481/0935

Effective date: 20210101

Owner name: HITACHI AUTOMOTIVE SYSTEMS, LTD., JAPAN

Free format text: MERGER;ASSIGNOR:HITACHI AUTOMOTIVE SYSTEMS ENGINEERING, LTD.;REEL/FRAME:058287/0295

Effective date: 20190401

Owner name: HITACHI AUTOMOTIVE SYSTEMS ENGINEERING, LTD., JAPAN

Free format text: CHANGE OF NAME;ASSIGNOR:HITACHI CAR ENGINEERING CO., LTD.;REEL/FRAME:058240/0239

Effective date: 20150401